For my short (<3 years) professional career, I've lived almost entirely in Java. I write in better languages for my hobby projects, but working on those you sol

For my short (<3 years) professional career, I've lived almost entirely in Java. I write in better languages for my hobby projects, but working on those you solve different kinds of problems. This heavyweight Java stuff is everywhere. DriverManager. Security SPIs. Hibernate. Spring. EJBs. JNDI. You cannot do enterprise work in Java without running into this culture. And just like poisonous people will poison you, so do poisonous design patterns. I was hacking on a Clojure project, and writing a data access layer, and without thinking started writing a factory-based indirection layer for abstraction purposes before realizing I didn't need one...